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Photo Credits
- 1. (c) David Monroy R, some rights reserved (CC BY-NC), uploaded by David Monroy R
- 2. (c) Roy Cohutta, some rights reserved (CC BY), uploaded by Roy Cohutta
- 3. no rights reserved, uploaded by Dario Taraborelli
- 4. (c) Jerry Oldenettel, some rights reserved (CC BY-NC-SA)
- 5. (c) Blake Matheson, some rights reserved (CC BY-NC)
- 6. (c) Ferran Pestaña, some rights reserved (CC BY-NC)
- 7. (c) Robin Gwen Agarwal, some rights reserved (CC BY-NC), uploaded by Robin Gwen Agarwal
- 8. (c) Salvador Poot Villanueva, some rights reserved (CC BY-NC), uploaded by Salvador Poot Villanueva
- 9. (c) Isabel, some rights reserved (CC BY-NC), uploaded by Isabel
- 10. (c) Julien Renoult, some rights reserved (CC BY), uploaded by Julien Renoult
- 11. (c) sallen, some rights reserved (CC BY-NC), uploaded by sallen
- 12. (c) Per Verdonk, some rights reserved (CC BY-NC)
- 13. (c) Mark Kilner, some rights reserved (CC BY-NC-SA)
- 14. (c) Cloudtail the Snow Leopard, some rights reserved (CC BY-NC-ND)
- 15. (c) Mike Hannisian, some rights reserved (CC BY-NC), uploaded by Mike Hannisian
- 16. (c) Arno Meintjes, some rights reserved (CC BY-NC-SA)
- 17. (c) Casey Weissburg, some rights reserved (CC BY-NC), uploaded by Casey Weissburg
- 18. (c) Carlos Sanchez, some rights reserved (CC BY-NC), uploaded by Carlos Sanchez
- 19. (c) Elvis Jimenez, some rights reserved (CC BY-NC), uploaded by Elvis Jimenez
- 20. (c) iturriagal, some rights reserved (CC BY-NC-ND), uploaded by iturriagal
- 21. (c) Rick Leche - Photography, some rights reserved (CC BY-NC-ND)
- 22. (c) hedera.baltica, some rights reserved (CC BY-SA)
- 23. (c) Константин Самодуров, some rights reserved (CC BY-NC), uploaded by Константин Самодуров
- 24. (c) Nicole, some rights reserved (CC BY-NC), uploaded by Nicole
- 25. (c) Andrej Chudý, some rights reserved (CC BY-NC-SA)
- 26. (c) eduardovieira1301, some rights reserved (CC BY-NC), uploaded by eduardovieira1301
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- 28. (c) fabiomanfredini, some rights reserved (CC BY-NC), uploaded by fabiomanfredini
- 29. (c) bwood708, some rights reserved (CC BY-NC), uploaded by bwood708
- 30. (c) Justyn Stahl, some rights reserved (CC BY-NC), uploaded by Justyn Stahl
- 31. (c) Tanja, some rights reserved (CC BY-NC), uploaded by Tanja
- 32. (c) Greg Lasley, some rights reserved (CC BY-NC), uploaded by Greg Lasley
- 33. (c) lemurtaquin, some rights reserved (CC BY-NC), uploaded by lemurtaquin
- 34. (c) Dan Pancamo, some rights reserved (CC BY-SA)
- 35. (c) Ross Millikan, some rights reserved (CC BY-NC), uploaded by Ross Millikan
- 36. (c) Christoph Moning, some rights reserved (CC BY), uploaded by Christoph Moning
- 37. (c) Paul Reeves, some rights reserved (CC BY-NC-SA), uploaded by Paul Reeves
- 38. (c) Paul Cools, some rights reserved (CC BY-NC), uploaded by Paul Cools
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- 40. (c) José Antonio Linage Espinosa, some rights reserved (CC BY-NC), uploaded by José Antonio Linage Espinosa
- 41. (c) Gary Yankech, some rights reserved (CC BY-NC-SA), uploaded by Gary Yankech
- 42. (c) Pablo Balduvino, some rights reserved (CC BY-NC), uploaded by Pablo Balduvino
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- 44. (c) Steven Mlodinow, some rights reserved (CC BY-NC), uploaded by Steven Mlodinow
- 45. (c) Ad Konings, some rights reserved (CC BY-NC), uploaded by Ad Konings
- 46. (c) roy pilcher, some rights reserved (CC BY-NC), uploaded by roy pilcher
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- 53. (c) James Bailey, some rights reserved (CC BY-NC), uploaded by James Bailey
- 54. (c) Patrick Coin, some rights reserved (CC BY-NC-SA)
- 55. (c) Magnus Lindberg - Close to nature, some rights reserved (CC BY-NC-ND)
- 56. (c) Len Blumin, some rights reserved (CC BY)
- 57. (c) Katja Schulz, some rights reserved (CC BY)
- 58. (c) Tommy Farquhar, some rights reserved (CC BY-NC), uploaded by Tommy Farquhar
- 59. (c) seelengalerie, some rights reserved (CC BY-NC-ND)
- 60. (c) Isaac Lord, some rights reserved (CC BY-NC), uploaded by Isaac Lord
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- 62. (c) Gary Ashley, some rights reserved (CC BY-NC)
- 63. (c) Herman Mays, some rights reserved (CC BY-NC-SA)
- 64. (c) Roger Butterfield, some rights reserved (CC BY-NC-SA)
- 65. (c) Lip Kee, some rights reserved (CC BY-SA)
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- 68. (c) Kentish Plumber, some rights reserved (CC BY-NC-ND)
- 69. (c) Dick Daniels, some rights reserved (CC BY-SA)
- 70. (c) Nick Chill, some rights reserved (CC BY-NC-ND)
- 71. (c) Ómar Runólfsson, some rights reserved (CC BY)
- 72. (c) Scott Bowers, some rights reserved (CC BY-NC), uploaded by Scott Bowers
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- 74. (c) Ronald Kelley, some rights reserved (CC BY-NC), uploaded by Ronald Kelley
- 75. (c) hillanddale, some rights reserved (CC BY-NC), uploaded by hillanddale
- 76. (c) Shirley Zundell, some rights reserved (CC BY), uploaded by Shirley Zundell
- 77. (c) Jonathan Eisen, some rights reserved (CC BY), uploaded by Jonathan Eisen
- 78. (c) haro_m_011, some rights reserved (CC BY-NC)
- 79. (c) Maggie.Smith, some rights reserved (CC BY-NC)
- 80. (c) Bobby McCabe, some rights reserved (CC BY), uploaded by Bobby McCabe
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- 82. (c) Len Blumin, some rights reserved (CC BY-NC-ND)
- 83. (c) Mark Peck, some rights reserved (CC BY-NC-SA)
- 84. (c) Daniel Alexander Carrillo Mtz, some rights reserved (CC BY-NC)
- 85. (c) José Arce Smith, some rights reserved (CC BY-NC), uploaded by José Arce Smith
- 86. (c) C.V. Vick, some rights reserved (CC BY-NC-ND)
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